Yazar "Abbasi, Qammer Hussain" seçeneğine göre listele

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    A comparative review on the wireless implantable medical devices privacy and security
    (Institute of Electrical and Electronics Engineers, 2014) Ankaralı, Zekeriyya Esat; Abbasi, Qammer Hussain; Demir, A. Fatih; Serpedin, Erchin; Qaraqe, Khalid; Arslan, Hüseyin
    Nowadays wireless communication is playing a vital role in implantable medical devices (IMDs) on health-care applications. It has many advantages in remote health monitoring, treatment and prediction for critical cases. However, any drawback in security of these devices against malicious attacks may lead to serious problems, such as theft of private information, wrong treatment and even death. In this paper, a comparative review of the current literature on IMD security research is provided to have a better understanding of the state of the art and the gaps in this direction.
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    Experimental characterization of in vivo radio channel at MICS and ISM Bands
    (Electromagnetics Academy, 2015) Abdelaziz, Aya; Abbasi, Qammer Hussain; Demir, A. Fatih; Qaraqe, Khalid; Serpedin, Erchin; Arslan, Hüseyin
    This paper presents an experimental study for the propagation losses and wave attenuation inside human body for implanted antenna at different body organs. The experimental study discusses the commonly used frequency bands: 402-405 MHz MICS (Medical Implant Communication Service) band, and the industrial, scientific and medical (ISM) band frequency at 915 MHz. The path loss is calculated for different positions of implant at different organs i.e., heart, stomach, and intestine. In addition, the effect of frequency change is discussed and analyzed.
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    In vivo wireless channel modeling
    (Institution of Engineering and Technology, 2016) Demir, Ali Fatih; Ankaralı, Zekeriyya Esat; Liu, Yang; Abbasi, Qammer Hussain; Qaraqe, Khalid; Serpedin, Erchin; Arslan, Hüseyin; Gitlin, Richard
    Technological advances in biomedical engineering have significantly improved the quality of life and increased the life expectancy of many people. In recent years, there has been increased interest inwireless body area networks(WBANs)research with the goal of satisfying the demand for innovative biomedical technologies and improved healthcare quality [1, 2]. One component ofsuch advanced technologiesisrepresented bythe devicessuch aswirelessin vivo sensors and actuators, e.g., pacemakers, internal drug delivery devices, nerve stimulators, wireless capsule endoscopes (WCEs), etc. In vivo wireless medical devices and their associated technologies represent the next stage of this evolution and offer a cost efficient and scalable solution along with the integration of wearable devices. In vivo-WBAN devices (Figure 7.1) are capable of providing continuous health monitoring and reducing the invasiveness of surgeries. Furthermore, patient information can be collected over a larger period of time, and physicians are able to perform more reliable analysis by exploiting big data [3] rather than relying on the data recorded in short hospital visits.
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    Numerical characterization of in vivo wireless communication channels
    (Institute of Electrical and Electronics Engineers Inc., 2014) Demir, Ali Fatih; Abbasi, Qammer Hussain; Ankaralı, Zekeriyya Esat; Serpedin, Erchin; Arslan, Hüseyin
    In this paper, we numerically investigated the in vivo wireless communication channel for human male torso at 915 MHz. Results show that in vivo channel is different than the classical communication channel and location dependency is very critical for link budget calculations. A statistical path loss model based on angle, depth and body region is introduced for near and far field regions. Furthermore, multipath characteristics are investigated using a power delay profile as well.
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    Physical layer security for wireless implantable medical devices
    (Institute of Electrical and Electronics Engineers, 2015) Ankaralı, Zekeriyya Esat; Demir, Fatih; Qaraqe, Marwa; Abbasi, Qammer Hussain; Serpedin, Erchin; Arslan, Hüseyin; Gitlin, Richard
    Wireless communications are increasingly important in health-care applications, particularly in those that use implantable medical devices (IMDs). Such systems have many advantages in providing remote healthcare in terms of monitoring, treatment and prediction for critical cases. However, the existence of malicious adversaries, referred to as nodes, which attempt to control implanted devices, constitutes a critical risk for patients. Such adversaries may perform dangerous attacks by sending malicious commands to the IMD, and any weakness in the device authentication mechanism may result in serious problems including death. In this paper we present a physical layer (PHY) authentication technique for IMDs that does not use existing methods of cryptology. In addition to ensuring authentication, the proposed technique also provides advantages in terms of decreasing processing complexity of IMDs and enhances overall communications performance.
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    Short paper: Experimental characterization of in vivo wireless communication channels
    (Institute of Electrical and Electronics Engineers, 2015) Demir, Ali Fatih; Abbasi, Qammer Hussain; Ankaralı, Zekeriyya Esat; Qaraqe, Marwa; Serpedin, Erchin; Arslan, Hüseyin
    In vivo wireless medical devices have a critical role in healthcare technologies due to their continuous health monitoring and noninvasive surgery capabilities. In order to fully exploit the potential of such devices, it is necessary to characterize the in vivo wireless communication channel which will help to build reliable and high-performance communication systems. This paper presents preliminary results of experimental characterization for this fascinating communications medium on a human cadaver and compares the results with numerical studies.